[Example] ChatTTS: fix README typo

Author: grorge123

wasmedge-chatTTS/README.md

@@ -22,7 +22,7 @@ cmake --build build
 cmake --install build
 ```
 
-Then you will have an executable `wasmedge` runtime under `/usr/local/bin` and the WASI-NN with Neural Speed backend plug-in under `/usr/local/lib/wasmedge/libwasmedgePluginWasiNN.so` after installation.
+Then you will have an executable `wasmedge` runtime under `/usr/local/bin` and the WASI-NN with ChatTTS backend plug-in under `/usr/local/lib/wasmedge/libwasmedgePluginWasiNN.so` after installation.
 
 ## Build wasm
 
@@ -66,4 +66,4 @@ let config_data = serde_json::to_string(&json!({"prompt": "[oral_2][laugh_0][bre
 
 </td>
 </tr>
-</table>
+</table>